Let's be honest, there are precious few advantages to getting as late a start doing something I love as much as training Lincoln and entering a world I knew little if anything about before bringing him into our family. I admit to lately and occasionally fantasizing about how I'd rewrite my life narrative if I had to do it all over again. Some things I wouldn't reconfigure even a little. I got ridiculously lucky on the spouse and life partner front. I'd put the quality and depth of my family and friend relationships (and the quality and …